/*
 * Copyright (c) 2020 - present, Inspur Genersoft Co., Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.inspur.edp.udt.generator.api.typeprocessers.persistencevaluereader;

import com.inspur.edp.caf.generator.utils.ExpressionUtils;
import com.inspur.edp.cef.repository.typetransprocesser.Bool2CharProcesser;
import com.inspur.edp.cef.repository.typetransprocesser.DecimalTransProcesser;
import com.inspur.edp.cef.repository.typetransprocesser.IntTransProcesser;
import com.inspur.edp.udt.designtime.api.entity.element.UdtElement;
import com.inspur.edp.udt.generator.UdtGeneratorContext;
import lombok.var;
import org.eclipse.jdt.core.dom.ConditionalExpression;
import org.eclipse.jdt.core.dom.InfixExpression;
import org.eclipse.jdt.core.dom.MethodInvocation;
import org.eclipse.jdt.core.dom.Statement;

//
//      /*  生成代码例子
//     public enum StateEnum
//      {
//          ZD = 1,
//          TJSP = 2,
//          SPTG = 3
//      }
//

public class UdtEnumPersistenceValueGenerator extends NullableTransPersistenceValueReaderGenerator
{
	public UdtEnumPersistenceValueGenerator(UdtGeneratorContext udtGenCtx,
      Class processorType,
      String propertyName)
  {
	  super(udtGenCtx, processorType, propertyName);
	}

@Override
  protected Statement getPropValueStatement() {
    var frag = ast.newVariableDeclarationFragment();
    var invocation = ExpressionUtils.getMethodInvocation(ast, asDataVarName, "get" + propertyName);
    MethodInvocation getValueInvocation = ExpressionUtils.getMethodInvocation(ast, invocation, "ordinal");

    ConditionalExpression conditionalExpression = ast.newConditionalExpression();
    InfixExpression infixExpression = ast.newInfixExpression();
    infixExpression.setLeftOperand(ExpressionUtils.getMethodInvocation(ast, asDataVarName, "get" + propertyName));
    infixExpression.setOperator(InfixExpression.Operator.EQUALS);
    infixExpression.setRightOperand(ast.newNullLiteral());
    conditionalExpression.setExpression(infixExpression);
    conditionalExpression.setThenExpression(ast.newNullLiteral());
    conditionalExpression.setElseExpression(getValueInvocation);

    frag.setInitializer(conditionalExpression );
    frag.setName(ast.newSimpleName(valueVarName));
    var statement = ast.newVariableDeclarationStatement(frag);
    statement.setType(ast.newSimpleType(ast.newSimpleName("Object")));

    return statement;
  }

  @Override
  protected MethodInvocation buildTransInvocation() {
    var invocation = ast.newMethodInvocation();
    invocation.setExpression(ast.newName(processorType.getTypeName()));
    invocation.setName(ast.newSimpleName("getInstacne"));

    var transInvocation = ExpressionUtils.getMethodInvocation(ast, invocation, "transType");
    transInvocation.arguments().add(ast.newSimpleName(valueVarName ));

    if (processorType == Bool2CharProcesser.class
            || processorType == IntTransProcesser.class
            || processorType == DecimalTransProcesser.class) {
      transInvocation.arguments().add(ast.newBooleanLiteral(true));
    }

    return transInvocation;
  }
}
